On the Translatability of View Updates

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Provided by: RWTH Aachen University
Topic: Data Management
Format: PDF
In this paper, the authors revisit the view update problem and the abstract functional framework by the researchers in a setting where views and updates are exactly given by functions that are expressible in first-order logic. They give a characterization of views and their inverses based on the notion of definability, and they introduce a general method for checking whether a view update can be uniquely translated as an update of the underlying database under the constant complement principle.
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